| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,218,163 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 736,984 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,975 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,280 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 180,118 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,083 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,181 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,868 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,843 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,537 |
| Island Countries Quiz | 0 | - | 4.99 | 577,277 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,477 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,161 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,723 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,150 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,935 |
| Countries That Border Russia | 0 | - | 4.98 | 368,372 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,628 |
| Communist Countries in History | 0 | - | 4.48 | 383,659 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,710 |
| Islands by Country #1 | 0 | - | 4.86 | 149,485 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,137 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,518 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,399 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,366 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,837 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,135 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,958 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,498 |
| One Border Countries | 0 | - | 4.98 | 359,367 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,946 |
| EU Countries Quiz | 0 | - | 4.99 | 207,043 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,476,056 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,254,266 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,501 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,932 |
| Countries that Start with A | 0 | - | 4.96 | 1,631,424 |
| Countries that Start with B | 0 | - | 4.94 | 1,768,989 |
| Countries that Start with C | 0 | - | 4.95 | 1,401,680 |
| Countries that Start with D | 0 | - | 4.96 | 464,412 |
| Countries that Start with E | 0 | - | 4.93 | 1,033,822 |
| Countries that Start with G | 0 | - | 4.95 | 1,131,355 |
| Countries that Start with H | 0 | - | 4.93 | 391,337 |
| Countries that Start with I | 0 | - | 4.90 | 977,698 |
| Countries that Start with J | 0 | - | 4.96 | 394,659 |
| Countries that Start with K | 0 | - | 4.94 | 572,877 |
| Countries that Start with L | 0 | - | 4.98 | 814,458 |
| Countries that Start with N | 0 | - | 4.90 | 835,649 |
| Countries that Start with P | 0 | - | 4.94 | 923,563 |
| Countries that Start with R | 0 | - | 4.42 | 300,449 |
| Countries that Start with S | 0 | - | 4.96 | 1,358,056 |
| Countries that Start with T | 0 | - | 4.89 | 759,906 |
| Countries that Start with U | 0 | - | 4.97 | 685,596 |
| Countries that Start with V | 0 | - | 4.97 | 456,786 |
| Countries that Start with F | 0 | - | 4.76 | 424,688 |
| Countries that Start with M | 0 | - | 4.95 | 1,061,607 |
| Countries that Border China | 0 | - | 4.97 | 212,191 |
| Top Crude Oil Producing Countries | 0 | - | 4.84 | 145,530 |
| Countries in World War II | 0 | - | 4.48 | 681,214 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,130 |
| Countries in World War I | 0 | - | 4.91 | 183,024 |
| Countries with Four Letters | 0 | - | 4.99 | 321,392 |
| Countries of Africa | 0 | - | 5.00 | 1,737,665 |
| Countries of South America | 0 | - | 5.00 | 624,719 |
| Countries of North America Quiz | 0 | - | 5.00 | 708,093 |
| Countries of Oceania | 0 | - | 5.00 | 714,236 |
| Countries with the Highest HDI | 0 | - | 4.96 | 124,630 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,404 |
| Vietnam War Countries | 0 | - | 4.78 | 76,757 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,542 |
| Countries Bordering France | 0 | - | 4.90 | 309,465 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,824 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,863 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,261 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,202 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,129 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,375 |
| Countries in their Native Language | 0 | - | 4.97 | 149,774 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,141 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,940 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,432 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,965 |
| Independence from Whom | 0 | - | 4.99 | 153,027 |
| Countries with Z | 0 | - | 4.99 | 223,167 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,570 |
| Political Movements by Country | 0 | - | 4.50 | 62,003 |
| "Land" Countries | 0 | - | 4.98 | 265,205 |
| European Countries by Clue | 0 | - | 4.94 | 154,530 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,647 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,492 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,684 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,936 |
| Former Countries by Capital | 0 | - | 4.41 | 97,431 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,144 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,655 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,844 |
| Ten Lowest HDI Countries in Europe | 0 | - | 4.43 | 65,668 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,425 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,463 |
| Ten Highest HDI Countries in Africa | 0 | - | 4.77 | 62,577 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,783 |
| Historical City to Country | 0 | - | 4.81 | 66,432 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,299 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,944 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,758 |
| Countries With the Most Languages | 0 | - | 4.90 | 150,539 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,935 |
| Countries Closest to Italy | 0 | - | 4.97 | 148,367 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,722 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,401 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,855 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,839 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,172 |
| WWII Geography | 0 | - | 4.73 | 88,993 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,332,327 |
| Countries That End in Y | 0 | - | 4.89 | 148,518 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,032 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,195 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 143,963 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,868 |
| Former Countries | 0 | - | 4.52 | 100,456 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,790 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,698 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,133 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,259 |
| Country Chain | 0 | - | 4.92 | 156,784 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,170 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,709 |
| Five Highest HDI Countries by Continent | 0 | - | 4.47 | 47,653 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,916 |
| Every Country Shape | 0 | - | 4.99 | 313,943 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,882,677 |
| Five Biggest Economies by Continent | 0 | - | 4.97 | 144,431 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,720 |
| Countries with Megacities | 0 | - | 4.99 | 176,089 |
| Every European Country Shape | 0 | - | 4.94 | 152,682 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,311 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,441 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,380 |
| Highest HDI Countries with Exceptions | 0 | - | 4.64 | 55,109 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,277 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,650,084 |
| Countries of the Middle East | 0 | - | 4.96 | 148,457 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.93 | 213,248 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,044 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,501 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,134 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,632 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,565 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,499 |
| Lowest HDI Countries with Exceptions | 0 | - | 4.74 | 37,245 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,662 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,384 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,481 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,856 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,034 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,936 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,515 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,973 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,543 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,022 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,527 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,616 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,494 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,163 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,655 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,565 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,349 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,430 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,973 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,141 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,693 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,082 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,835 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,281 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 42,626 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,027 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,118 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,654 |
| Countries by Emojis | 0 | - | 4.99 | 158,607 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,154 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,738 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,707 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,531 |
| Random Flag to Country | 0 | - | 4.99 | 388,610 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,649 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,065 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,092 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,436 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,198 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,096,312 |
| Countries of the German Empire | 0 | - | 4.36 | 26,684 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,337 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,430 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,970 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,725 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,177 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,135 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,779 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,776 |
